Method and system for injecting sub-synchronization signals

(19)

(11)

EP 1 802 002 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	18.02.2009 Bulletin 2009/08

(43)	Date of publication A2:
	27.06.2007 Bulletin 2007/26

(21)	Application number: 06077182.1

(22)	Date of filing: 06.12.2006

(51)

International Patent Classification (IPC):

H04B 7/185^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK RS

(30)

Priority:

22.12.2005 US 315655

(71)	Applicant: Delphi Technologies, Inc.
	Troy, Michigan 48007 (US)

(72)	Inventors:
	Dibiasco, Eric A. Kokomo, IN 46901 (US) Walker, Glenn A. Greentown, IN 46936 (US)

(74)	Representative: Denton, Michael John et al
	Delphi France SAS 64 Avenue de la Plaine de France ZAC Paris Nord II B.P. 65059, Tremblay en France 95972 Roissy Charles de Gaulle Cedex 95972 Roissy Charles de Gaulle Cedex (FR)

(54)	Method and system for injecting sub-synchronization signals

(57) A system and method of communicating sub-synchronization information into a transmitted digital audio stream and extracting sub-synchronization information from a received digital audio stream is provided. The method includes the steps of having a transmitter (50) introduce sub-synchronization information (S) into a data stream at a period less than that of existing pre-amble signals (FSPs), and transmitting that data to a receiver (40). The method further includes the steps of receiving the transmitted data stream in the receiver (40), extracting the synchronization information (S), and using the synchronization information (S) to accurately decode the received audio data.

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